基于双边引导上采样的图像增强快速实现研究

提出了一种图像增强的快速实现方法。因为直接对高分辨率图像进行图像增强,运算量大,耗时多,不利于实时应用,所以结合了引导滤波和联合双边上采样的特点,采用双边引导上采样的方法。先将图像进行1/8下采样后,再对下采样后的图像进行增强,然后再通过双边引导上采样恢复到原始图像大小。实验结果表明,文中方法的处理结果与图像增强处理结果外观差异不大,大大降低了图像增强所需的时间,达到了实时处理的要求。

Fast Implementation of Image Enhancement Based on Bilateral Guided Upsampling

This paper presents a fast implementation method of image enhancement. Because the image enhancement operation of high-resolution images is large and time-consuming, which is not conducive to real-time applications, this paper combines the characteristics of guided filtering and joint bilateral upsampling. The method of guiding the upsampling is to first perform the 1/8 downsampling of the image, then enhance the downsampled image, and then restore the original image size by bilateral guided upsampling. The experimental results show that the processing results of the proposed method are not much different from the original high resolution image enhancement processing results, which greatly reduces the time required for image enhancement and meets the requirements of real-time processing.